Low mass dimuon production in proton and ion induced interactions at the SPS

M. C. Abreu; B. Alessandro; C. Alexa; R. Arnaldi; J. Astruc; M. Atayan; C. Baglin; A. Baldisseri; A. Baldit; M. Bedjidian; F. Bellaiche; S. Beolè; V. Boldea; P. Bordalo; A. Bussière; V. Capony; L. Casagrande; J. Castor; T. Chambon; B. Chaurand; I. Chevrot; B. Cheynis; E. Chiavassa; C. Cicalò; M. P. Comets; N. Constans; S. Constantinescu; D. Contardo; A. De Falco; G. Dellacasa; N. De Marco; E. Descroix; A. Devaux; S. Dita; O. Drapier; B. Espagnon; J. Fargeix; R. Ferreira; S. N. Filippov; F. Fleuret; P. Force; M. Gallio; Y. K. Gavrilov; C. Gerschel; P. Giubellino; M. B. Golubeva; M. Gonin; P. Gorodetzky; A. A. Grigorian; J. Y. Grossiord; F. F. Guber; A. Guichard; J. P. Guillaud; H. Gulkanyan; R. Hakobyan; R. Haroutunian; M. Idzik; D. Jouan; T. L. Karavitcheva; L. Kluberg; R. Kossakowski; A. B. Kurepin; Y. Le Bornec; P. Liaud; C. Lourenço; M. Mac Cormick; P. Macciotta; A. Marzari-Chiesa; M. Masera; A. Masoni; S. Mehrabyan; M. Monteno; S. Mourgues; A. Musso; F. Ohlsson-Malek; P. Petiau; A. Piccotti; J. R. Pizzi; F. Prino; G. Puddu; C. Quintans; C. Racca; L. Ramello; S. Ramos; P. Rato-Mendes; L. Riccati; A. Romana; B. Ronceux; I. Ropotar; P. Saturnini; E. Scomparin; S. Serci; R. Shahoyan; S. Silva; M. Sitta; C. Soave; P. Sonderegger; F. Staley; X. Tarrago; N. S. Topilskaya; G. L. Usai; J. Varela; E. Vercellin; N. Willis

doi:10.1007/s100520000288

Low mass dimuon production in proton and ion induced interactions at the SPS

M. C. Abreu, B. Alessandro, C. Alexa, R. Arnaldi, J. Astruc, M. Atayan, C. Baglin, A. Baldisseri, A. Baldit, M. Bedjidian, F. Bellaiche, S. Beolè, V. Boldea, P. Bordalo, A. Bussière, V. Capony, L. Casagrande, J. Castor, T. Chambon, B. ChaurandI. Chevrot, B. Cheynis, E. Chiavassa, C. Cicalò, M. P. Comets, N. Constans, S. Constantinescu, D. Contardo, A. De Falco, G. Dellacasa, N. De Marco, E. Descroix, A. Devaux, S. Dita, O. Drapier, B. Espagnon, J. Fargeix, R. Ferreira, S. N. Filippov, F. Fleuret, P. Force, M. Gallio, Y. K. Gavrilov, C. Gerschel, P. Giubellino, M. B. Golubeva, M. Gonin, P. Gorodetzky, A. A. Grigorian, J. Y. Grossiord, F. F. Guber, A. Guichard, J. P. Guillaud, H. Gulkanyan, R. Hakobyan, R. Haroutunian, M. Idzik, D. Jouan, T. L. Karavitcheva, L. Kluberg, R. Kossakowski, A. B. Kurepin, Y. Le Bornec, P. Liaud, C. Lourenço, M. Mac Cormick, P. Macciotta, A. Marzari-Chiesa, M. Masera, A. Masoni, S. Mehrabyan, M. Monteno, S. Mourgues, A. Musso, F. Ohlsson-Malek, P. Petiau, A. Piccotti, J. R. Pizzi, F. Prino, G. Puddu, C. Quintans, C. Racca, L. Ramello, S. Ramos, P. Rato-Mendes, L. Riccati, A. Romana, B. Ronceux, I. Ropotar, P. Saturnini, E. Scomparin, S. Serci, R. Shahoyan, S. Silva, M. Sitta, C. Soave, P. Sonderegger, F. Staley, X. Tarrago, N. S. Topilskaya, G. L. Usai, J. Varela, E. Vercellin, N. Willis

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

The low mass dimuon spectra collected in p-U collisions by the NA38 experiment significantly exceeds the total cross section expected from previous analysis, done by other experiments. The 'excess' events have a harder p_T distribution than the muon pairs from η and ω Dalitz decays, expected to dominate the mass window 0.4-0.65 GeV/c². We conjecture that the excess events may be due to qq̄ annihilations, negligible at low p_T but made visible by the m_T cut applied in the NA38 data. Taking this assump_Tion to parametrise the p-U spectra, we proceed with the corresponding analysis of the S-Cu, S-U and Pb-Pb data, collected by the NA38 and NA50 experiments, comparing the measured low mass dimuon spectra with the 'expected cocktail'.

Lingua originale	Inglese
pagine (da-a)	69-78
Numero di pagine	10
Rivista	European Physical Journal C
Volume	13
Numero di pubblicazione	1
DOI	https://doi.org/10.1007/s100520000288
Stato di pubblicazione	Pubblicato - 2000

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10.1007/s100520000288

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Abreu, M. C., Alessandro, B., Alexa, C., Arnaldi, R., Astruc, J., Atayan, M., Baglin, C., Baldisseri, A., Baldit, A., Bedjidian, M., Bellaiche, F., Beolè, S., Boldea, V., Bordalo, P., Bussière, A., Capony, V., Casagrande, L., Castor, J., Chambon, T., ... Willis, N. (2000). Low mass dimuon production in proton and ion induced interactions at the SPS. European Physical Journal C, 13(1), 69-78. https://doi.org/10.1007/s100520000288

@article{7b5470cbe49844fb91e2c88408b54465,

title = "Low mass dimuon production in proton and ion induced interactions at the SPS",

abstract = "The low mass dimuon spectra collected in p-U collisions by the NA38 experiment significantly exceeds the total cross section expected from previous analysis, done by other experiments. The 'excess' events have a harder pT distribution than the muon pairs from η and ω Dalitz decays, expected to dominate the mass window 0.4-0.65 GeV/c2. We conjecture that the excess events may be due to q{\=q} annihilations, negligible at low pT but made visible by the mT cut applied in the NA38 data. Taking this assumpTion to parametrise the p-U spectra, we proceed with the corresponding analysis of the S-Cu, S-U and Pb-Pb data, collected by the NA38 and NA50 experiments, comparing the measured low mass dimuon spectra with the 'expected cocktail'.",

author = "Abreu, {M. C.} and B. Alessandro and C. Alexa and R. Arnaldi and J. Astruc and M. Atayan and C. Baglin and A. Baldisseri and A. Baldit and M. Bedjidian and F. Bellaiche and S. Beol{\`e} and V. Boldea and P. Bordalo and A. Bussi{\`e}re and V. Capony and L. Casagrande and J. Castor and T. Chambon and B. Chaurand and I. Chevrot and B. Cheynis and E. Chiavassa and C. Cical{\`o} and Comets, {M. P.} and N. Constans and S. Constantinescu and D. Contardo and {De Falco}, A. and G. Dellacasa and {De Marco}, N. and E. Descroix and A. Devaux and S. Dita and O. Drapier and B. Espagnon and J. Fargeix and R. Ferreira and Filippov, {S. N.} and F. Fleuret and P. Force and M. Gallio and Gavrilov, {Y. K.} and C. Gerschel and P. Giubellino and Golubeva, {M. B.} and M. Gonin and P. Gorodetzky and Grigorian, {A. A.} and Grossiord, {J. Y.} and Guber, {F. F.} and A. Guichard and Guillaud, {J. P.} and H. Gulkanyan and R. Hakobyan and R. Haroutunian and M. Idzik and D. Jouan and Karavitcheva, {T. L.} and L. Kluberg and R. Kossakowski and Kurepin, {A. B.} and {Le Bornec}, Y. and P. Liaud and C. Louren{\c c}o and {Mac Cormick}, M. and P. Macciotta and A. Marzari-Chiesa and M. Masera and A. Masoni and S. Mehrabyan and M. Monteno and S. Mourgues and A. Musso and F. Ohlsson-Malek and P. Petiau and A. Piccotti and Pizzi, {J. R.} and F. Prino and G. Puddu and C. Quintans and C. Racca and L. Ramello and S. Ramos and P. Rato-Mendes and L. Riccati and A. Romana and B. Ronceux and I. Ropotar and P. Saturnini and E. Scomparin and S. Serci and R. Shahoyan and S. Silva and M. Sitta and C. Soave and P. Sonderegger and F. Staley and X. Tarrago and Topilskaya, {N. S.} and Usai, {G. L.} and J. Varela and E. Vercellin and N. Willis",

year = "2000",

doi = "10.1007/s100520000288",

language = "English",

volume = "13",

pages = "69--78",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer New York",

number = "1",

}

Abreu, MC, Alessandro, B, Alexa, C, Arnaldi, R, Astruc, J, Atayan, M, Baglin, C, Baldisseri, A, Baldit, A, Bedjidian, M, Bellaiche, F, Beolè, S, Boldea, V, Bordalo, P, Bussière, A, Capony, V, Casagrande, L, Castor, J, Chambon, T, Chaurand, B, Chevrot, I, Cheynis, B, Chiavassa, E, Cicalò, C, Comets, MP, Constans, N, Constantinescu, S, Contardo, D, De Falco, A, Dellacasa, G, De Marco, N, Descroix, E, Devaux, A, Dita, S, Drapier, O, Espagnon, B, Fargeix, J, Ferreira, R, Filippov, SN, Fleuret, F, Force, P, Gallio, M, Gavrilov, YK, Gerschel, C, Giubellino, P, Golubeva, MB, Gonin, M, Gorodetzky, P, Grigorian, AA, Grossiord, JY, Guber, FF, Guichard, A, Guillaud, JP, Gulkanyan, H, Hakobyan, R, Haroutunian, R, Idzik, M, Jouan, D, Karavitcheva, TL, Kluberg, L, Kossakowski, R, Kurepin, AB, Le Bornec, Y, Liaud, P, Lourenço, C, Mac Cormick, M, Macciotta, P, Marzari-Chiesa, A, Masera, M, Masoni, A, Mehrabyan, S, Monteno, M, Mourgues, S, Musso, A, Ohlsson-Malek, F, Petiau, P, Piccotti, A, Pizzi, JR, Prino, F, Puddu, G, Quintans, C, Racca, C, Ramello, L, Ramos, S, Rato-Mendes, P, Riccati, L, Romana, A, Ronceux, B, Ropotar, I, Saturnini, P, Scomparin, E, Serci, S, Shahoyan, R, Silva, S, Sitta, M, Soave, C, Sonderegger, P, Staley, F, Tarrago, X, Topilskaya, NS, Usai, GL, Varela, J, Vercellin, E & Willis, N 2000, 'Low mass dimuon production in proton and ion induced interactions at the SPS', European Physical Journal C, vol. 13, n. 1, pagg. 69-78. https://doi.org/10.1007/s100520000288

TY - JOUR

T1 - Low mass dimuon production in proton and ion induced interactions at the SPS

AU - Abreu, M. C.

AU - Alessandro, B.

AU - Alexa, C.

AU - Arnaldi, R.

AU - Astruc, J.

AU - Atayan, M.

AU - Baglin, C.

AU - Baldisseri, A.

AU - Baldit, A.

AU - Bedjidian, M.

AU - Bellaiche, F.

AU - Beolè, S.

AU - Boldea, V.

AU - Bordalo, P.

AU - Bussière, A.

AU - Capony, V.

AU - Casagrande, L.

AU - Castor, J.

AU - Chambon, T.

AU - Chaurand, B.

AU - Chevrot, I.

AU - Cheynis, B.

AU - Chiavassa, E.

AU - Cicalò, C.

AU - Comets, M. P.

AU - Constans, N.

AU - Constantinescu, S.

AU - Contardo, D.

AU - De Falco, A.

AU - Dellacasa, G.

AU - De Marco, N.

AU - Descroix, E.

AU - Devaux, A.

AU - Dita, S.

AU - Drapier, O.

AU - Espagnon, B.

AU - Fargeix, J.

AU - Ferreira, R.

AU - Filippov, S. N.

AU - Fleuret, F.

AU - Force, P.

AU - Gallio, M.

AU - Gavrilov, Y. K.

AU - Gerschel, C.

AU - Giubellino, P.

AU - Golubeva, M. B.

AU - Gonin, M.

AU - Gorodetzky, P.

AU - Grigorian, A. A.

AU - Grossiord, J. Y.

AU - Guber, F. F.

AU - Guichard, A.

AU - Guillaud, J. P.

AU - Gulkanyan, H.

AU - Hakobyan, R.

AU - Haroutunian, R.

AU - Idzik, M.

AU - Jouan, D.

AU - Karavitcheva, T. L.

AU - Kluberg, L.

AU - Kossakowski, R.

AU - Kurepin, A. B.

AU - Le Bornec, Y.

AU - Liaud, P.

AU - Lourenço, C.

AU - Mac Cormick, M.

AU - Macciotta, P.

AU - Marzari-Chiesa, A.

AU - Masera, M.

AU - Masoni, A.

AU - Mehrabyan, S.

AU - Monteno, M.

AU - Mourgues, S.

AU - Musso, A.

AU - Ohlsson-Malek, F.

AU - Petiau, P.

AU - Piccotti, A.

AU - Pizzi, J. R.

AU - Prino, F.

AU - Puddu, G.

AU - Quintans, C.

AU - Racca, C.

AU - Ramello, L.

AU - Ramos, S.

AU - Rato-Mendes, P.

AU - Riccati, L.

AU - Romana, A.

AU - Ronceux, B.

AU - Ropotar, I.

AU - Saturnini, P.

AU - Scomparin, E.

AU - Serci, S.

AU - Shahoyan, R.

AU - Silva, S.

AU - Sitta, M.

AU - Soave, C.

AU - Sonderegger, P.

AU - Staley, F.

AU - Tarrago, X.

AU - Topilskaya, N. S.

AU - Usai, G. L.

AU - Varela, J.

AU - Vercellin, E.

AU - Willis, N.

PY - 2000

Y1 - 2000

N2 - The low mass dimuon spectra collected in p-U collisions by the NA38 experiment significantly exceeds the total cross section expected from previous analysis, done by other experiments. The 'excess' events have a harder pT distribution than the muon pairs from η and ω Dalitz decays, expected to dominate the mass window 0.4-0.65 GeV/c2. We conjecture that the excess events may be due to qq̄ annihilations, negligible at low pT but made visible by the mT cut applied in the NA38 data. Taking this assumpTion to parametrise the p-U spectra, we proceed with the corresponding analysis of the S-Cu, S-U and Pb-Pb data, collected by the NA38 and NA50 experiments, comparing the measured low mass dimuon spectra with the 'expected cocktail'.

AB - The low mass dimuon spectra collected in p-U collisions by the NA38 experiment significantly exceeds the total cross section expected from previous analysis, done by other experiments. The 'excess' events have a harder pT distribution than the muon pairs from η and ω Dalitz decays, expected to dominate the mass window 0.4-0.65 GeV/c2. We conjecture that the excess events may be due to qq̄ annihilations, negligible at low pT but made visible by the mT cut applied in the NA38 data. Taking this assumpTion to parametrise the p-U spectra, we proceed with the corresponding analysis of the S-Cu, S-U and Pb-Pb data, collected by the NA38 and NA50 experiments, comparing the measured low mass dimuon spectra with the 'expected cocktail'.

UR - http://www.scopus.com/inward/record.url?scp=23044520397&partnerID=8YFLogxK

U2 - 10.1007/s100520000288

DO - 10.1007/s100520000288

M3 - Article

SN - 1434-6044

VL - 13

SP - 69

EP - 78

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

ER -

Low mass dimuon production in proton and ion induced interactions at the SPS

Abstract

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